Research was conducted to receive data on meat qualities of the hybrid pigs developed with involvement of Body breed pigs in three and four breed crossing options. It was shown that use of the Body pigs in three- and four-breed crossing options improves quality of pig carcasses: they have thinner back fat, greater percent of meat and smaller percent of subcutaneous fat.
Keywords: pigs, Body breed, crossing, hybrids, slaughter products, subcutaneous fat, back fat, meat, carcass, Student’s criterion.
It has been experimentally proved that increase in sow feeding level four and two days prior to mating has a positive effect of formation of follicle-stimulating hormone and enhances ovulation in oligocarpous sows.
Keywords: prolificacy, ovulation, follicle-stimulating hormone, feeding level, mating, oligocarpous sows.
Enterprise Nazarovskoe — one of the largest agricultural companies in Russia — together with the company Big Dutchman is successfully implementing the project of installing a pig liquid feeding system Hydromix and a sensor piglet liquid feeding system HydroAir.
Keywords: pigs, piglets, feed, feeding, Nazarovskoe, Big Dutchman, feeding trough, sensors, sensory system, installation, Hydromix, HydroAir, equipment, fattening, computer, farrow area, liquid feeding system, drop tubes, modular design, population, feed valve.
Degree of correlation of biological attributes in the animals developing at the influence of multiple factors can vary from zero to very high. Genetic possibility of improving economically useful attributes in animals primarily depends on the degree of this correlation.
Keywords: pig production, stock breeding, tandem selection, meat properties, fattening properties, correlation of signs, 100 kg age, early maturity, meat content, carcass length, rib eye.
Natalia Kazmina, Director of Selection Hybrid Centre Ltd. discusses genetic improvement and information support at breeding of thoroughbred pigs.
Keywords: genetic improvement, selection, pig production, software, FIAS software, BLUP, male pig, sow, population, herd, breed, index system, selection sign, prolificacy, rib eye, salted pork fat, pork, replacements, hybrid.
Active application of hybridization schemes and techniques in pig production contributes to high profitability of animal growing farms.
Keywords: pig production, selection, stock breeding, hybridization, heterosis, breed lines, genotype, crossing, Yorkshire, Landrace, Duroc, Hampshire, Pietrain, male pig, sow, prolificacy, female and male parents, herd, population, thoroughbred and crossbred young animals, nucleus, grandparents, thoroughbred animal, genetics, breeding and productive properties, early maturity, nucleus, salted pork fat.
Absolute and relative indicators of young pig growth and development have some clear features, and it should be considered at animal crossing.
Keywords: pig production, selection, interbreed crossing, hybridization, genotypes, growth indexes, fattening properties, baby pigs, young pigs, Landrace, Duroc, Yorkshire, cross breed, productivity, meat qualities, sow, male pig.
Comparative analysis of the chemical composition of muscular and adipose tissue of yelts of the Large White breed and cross breeds with Duroc, Pietrain, Landrace.
Keywords: selection, Large White breed, Pietrain, Duroc, Landrace, chemical composition, meat, pork fat, protein, raw fat, raw ashes, dry matter.
The article discusses the reasons of occurrence and methods of prevention of impairment in reproductive function of breeding boars.
Keywords: boar, reproductive function, impotence, spermatogenesis, fertility, ejaculate, estrus, mount, heterospermic insemination.
Economically grounded planning of the slaughter weight allows improvement of pig farming profitability.